<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref } from 'vue'
import { ElMessage } from 'element-plus'
//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false)
//定义数据模型
const registerData = ref({
    username: '',
    password: '',
    rePassword: ''
})

//校验密码的函数
const checkRePassword = (rule, value, callback) => {
    if (value == '') {
        callback(new Error('请再次确认密码'))
    } else if (value != registerData.value.password) {
        callback(new Error('请确保两次输入的密码一样'))
    } else {
        callback()
    }
}
//定义表单校验规则
const rules = {
    username: [
        { required: true, message: '请输入用户名', trigger: 'blur' },
        { min: 2, max: 16, message: '长度为2~10位非空字符串', trigger: 'blur' },
    ],
    password: [
        { required: true, message: '请输入密码', trigger: 'blur' },
        { min: 5, max: 16, message: '长度为5~16位非空字符串', trigger: 'blur' },
    ],
    rePassword: [
        { validator: checkRePassword, trigger: 'blur' }
    ]
}

//注册
import { userRegisterService, userLoginService } from '@/api/user.js'
const register = async () => {
    let result = await userRegisterService(registerData.value)
    ElMessage.success(result.msg ? result.msg : '注册成功')
}
//登录
import { useTokenStore } from '@/stores/token.js'
import { useRouter } from 'vue-router'
const router = useRouter()
const tokenStore = useTokenStore()
const login = async () => {
    let result = await userLoginService(registerData.value)
    ElMessage.success(result.msg ? result.msg : '登录成功')

    //token存到pinia中
    tokenStore.setToken(result.data)

    //跳转页面
    router.push('/')
}
//清空数据
const clearRegisterData = () => {
    registerData.value = {
        username: '',
        password: '',
        rePassword: ''
    }
}
</script>

<template>
    <div class="contain">
        <div class="box"></div>
        <el-row class="login-page">
            <!-- <el-col :span="12" class="bg"></el-col> -->
            <el-col :span="6" :offset="2" class="form">
                <!-- 注册表单 -->
                <el-form ref="form" size="large" autocomplete="off" v-if="isRegister" :model="registerData"
                    :rules="rules">
                    <el-form-item>
                        <h1 style="color: #fff;">注册</h1>
                    </el-form-item>
                    <el-form-item prop="username">
                        <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                    </el-form-item>
                    <el-form-item prop="password">
                        <el-input :prefix-icon="Lock" type="password" placeholder="请输入密码"
                            v-model="registerData.password" show-password></el-input>
                    </el-form-item>
                    <el-form-item prop="rePassword">
                        <el-input :prefix-icon="Lock" type="password" placeholder="请再次输入密码"
                            v-model="registerData.rePassword" show-password></el-input>
                    </el-form-item>
                    <!-- 注册按钮 -->
                    <el-form-item>
                        <el-button class="button" type="primary" auto-insert-space @click="register">
                            注册
                        </el-button>
                    </el-form-item>
                    <el-form-item class="flex">
                        <h2 type="info" style="color: #fff;" :underline="false"
                            @click="isRegister = false; clearRegisterData()">
                            ← 返回
                        </h2>
                    </el-form-item>
                </el-form>

                <!-- 登录表单 -->
                <el-form ref="form" size="large" autocomplete="off" v-else :model="registerData" :rules="rules">
                    <el-form-item>
                        <h1 style="color: #fff;">登录</h1>
                    </el-form-item>
                    <el-form-item prop="username">
                        <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                    </el-form-item>
                    <el-form-item prop="password">
                        <el-input name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码"
                            v-model="registerData.password" show-password></el-input>
                    </el-form-item>

                    <!-- 登录按钮 -->
                    <el-form-item>
                        <el-button class="button" type="primary" auto-insert-space @click="login">登录</el-button>
                    </el-form-item>
                    <el-form-item class="flex">
                        <h2 type="info" style="color: #fff;" :underline="false"
                            @click="isRegister = true; clearRegisterData()">
                            注册 →
                        </h2>
                    </el-form-item>
                </el-form>
            </el-col>

        </el-row>
    </div>
</template>

<style lang="scss" scoped>
.contain {
    background: url('@/assets/login.png') no-repeat center / cover;
}

/* 样式 */
.box {
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    width: 500px;
    height: 400px;
    top: 170px;
    left: 60px;
    position: absolute;
    z-index: 1;
}

.login-page {
    z-index: 2;
    height: 100vh;
     

    .form {
        margin-top: 180px;
        height: 400px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        user-select: none;


        .title {
            margin: 0 auto;
        }

        .button {
            width: 100%;
        }


    }
}
</style>